diff --git a/addons/purchase_requisition/tests/test_purchase_requisition.py b/addons/purchase_requisition/tests/test_purchase_requisition.py
index 26cd62f3d93..abd863a2b90 100644
--- a/addons/purchase_requisition/tests/test_purchase_requisition.py
+++ b/addons/purchase_requisition/tests/test_purchase_requisition.py
@@ -487,3 +487,25 @@ class TestPurchaseRequisition(TestPurchaseRequisitionCommon):
         self.bo_requisition.company_id = new_company
         self.bo_requisition.action_in_progress()
         self.assertTrue(self.bo_requisition.name.startswith("REQ_"))
+
+    def test_taxes_for_alternative_po(self):
+        """
+            Check that PO lines of PO generated by alternative compute taxes
+        """
+        product = self.product_13
+        vendor = self.res_partner_1
+        po_form = Form(self.env['purchase.order'])
+        po_form.partner_id = vendor
+        with po_form.order_line.new() as line:
+            line.product_id = product
+            line.product_qty = 1
+        orig_po = po_form.save()
+        # Creates an alternative PO
+        action = orig_po.action_create_alternative()
+        alt_po_wizard_form = Form(self.env['purchase.requisition.create.alternative'].with_context(**action['context']))
+        alt_po_wizard_form.partner_id = vendor
+        alt_po_wizard_form.copy_products = True
+        alt_po_wizard = alt_po_wizard_form.save()
+        alt_po_id = alt_po_wizard.action_create_alternative()['res_id']
+        alt_po = self.env['purchase.order'].browse(alt_po_id)
+        self.assertEqual(orig_po.order_line.taxes_id, alt_po.order_line.taxes_id)
diff --git a/addons/purchase_requisition/wizard/purchase_requisition_create_alternative.py b/addons/purchase_requisition/wizard/purchase_requisition_create_alternative.py
index f494a5ad294..31b7d8a95ff 100644
--- a/addons/purchase_requisition/wizard/purchase_requisition_create_alternative.py
+++ b/addons/purchase_requisition/wizard/purchase_requisition_create_alternative.py
@@ -60,6 +60,7 @@ class PurchaseRequisitionCreateAlternative(models.TransientModel):
             )
         vals = self._get_alternative_values()
         alt_po = self.env['purchase.order'].with_context(origin_po_id=self.origin_po_id.id, default_requisition_id=False).create(vals)
+        alt_po.order_line._compute_tax_id()
         return {
             'type': 'ir.actions.act_window',
             'view_mode': 'form',